TWO DIMENSIONAL MAGNETOPHONON RESONANCE IN GaInAs-InP SUPERLATTICES.

M. A. Brummell*, R. J. Nicholas, J. C. Portal, M. Razeghi, M. A. Poisson

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Cyclotron resonance and magnetophonon resonance studies have been made of superlattices grown from thin layers of Ga. //4//7In. //5//3As and InP, which exhibit two dimensional behavior at temperatures up to 250K. The electron effective mass varies with layer thickness in reasonable agreement with the calculated non-parabolicity. The LO phonon energies are calculated from magnetophonon oscillations and mass values obtained from cyclotron resonance. A strong series of oscillations results from the dominant 'GaAs-like' mn mode in GaInAs. A second, weaker series corresponds to the energy of the InP LO phonon. This is evidence for a long range phonon interaction, with the field of the phonons extending into the GaInAs to cause a significant coupling with the electrons bound in the quantum wells.

Original languageEnglish (US)
Pages (from-to)753-755
Number of pages3
JournalPhysica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
Volume117-118
Issue numberPt II
StatePublished - Jan 1 1982
EventProc of the Int Conf on the Phys of Semicond, 16th - Montpellier, Fr
Duration: Sep 6 1982Sep 10 1982

ASJC Scopus subject areas

  • Engineering(all)

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